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Used
2020 GMC Sierra 1500 trucks
for sale
near
Millis, MA
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great place to buy a car
Tom was polite. And very informative. Not pushy and answered all of pur questions. I ended up buying a car that was discounted. 10 out of 10.
Any reviews on this vehicle is not correct.
Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !
Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Everyone was very helpful and friendly.
Everyone was very helpful and friendly. They answered all my questions. Chee was excellent. I highly recommend McGovern Honda . Thank you
Great truck!
I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!
Used
2020 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
I would like to thank the service department for honoring
I would like to thank the service department for honoring my rim warranty. I brought my truck there while I was getting new tires and wanted my rims to get refinished at the same time because I paid for the warranty when I purchased the vehicle and the service wasn’t available at that time. They told me to bring it back. I brought it back almost a year later and my warranty was up. They completed the rim repair and I didn’t have to pay for the service to be done. ZERO cost to the customer!!!! Nucar puts the customer first!!!! Thank You again for the service and consideration!!!!! I will continue to purchase vehicles there as well as getting them serviced 👍🇺🇸
Short turn radius
I purchased pre-owned 2020 1500 SLT in February of this year. The truck rides comfortable and has plenty of room front and rear. My and I both enjoy it. My only drawback is the turn radius (lock to lock). It lacks compared to my wife's 2018 Yukon SLT, or the 2016 Ram I traded in. Have to many times maneuver twice to park it going forward or reverse. Otherwise happy with our purchase.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
They are fantastic
I purchased a 2008 honda crv67,000 miles. I thought maybe I had no chance to get into this Honda because of bad credit. But they assured me if this is the car I want they would make it happen and sure enough it did. The next day I was in my car and very happy. They were understanding, caring, helpful. They made sure the car was in mint condition when they gave it to us. It is running beautiful. I am so glad I went there. I would buy another car there in a heartbeat. They were absolutely wonderful. Thank you car max for making are dreams come true.
Great Truck
I did my research and test drove several models. The GMC 1500 Duramax does everything I want it to do and more. Great gas milage, nice power and very comfortable.
Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Was greeted with a smile and asked what I was there for.
Was greeted with a smile and asked what I was there for. Took my car in quickly and I waited not long at all for my oil change and when it was ready I paid for my service and went on my way.
Best truck we have owned!
Truck meets my and my wife's needs. She loves her and I do to! Love sport mode and the tow hail mode. Rides like a Cadillac!
Vehicle information
Features
Reviews
Amazing customer service from start to finish!
Amazing customer service from start to finish! We bought from out of state and highly recommend Medway.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Sharon Munoz helped me to get my car all ready to go.
Sharon Munoz helped me to get my car all ready to go. She made sure everything was perfect and there were no issues. I would recommend people to come buy a car from her.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Needed a change from the old Cadillac SUV, visited
Needed a change from the old Cadillac SUV, visited Imperial and met Ach, an energetic salesman who showed us choices and we settled on the Tucson Hybrid. Dealership was solid, impressed by Ach and we love the car, very pleased.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Recommend Isaiah, good salesman, took good care of us
Recommend Isaiah, good salesman, took good care of us with our purchase. 2023 Cadillac XT5
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great dealership.
Great dealership. High quality used cars surpassed only by their high quality employees. Salesperson (Alex) and General Manager (Taylor) were great. Taylor is absolutely the best person to deal with. Honest, straightforward and he truly wants to get you a vehicle you love. He's not just trying to sell you a car. He is trying to make you love your purchase.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Thanks Daniel Couto
Our salesman Daniel Couto made the buying experience great. There was no pressure or stress at all. I would recommend Daniel to my friends. Thanks Daniel. Russell and Robin Perry
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Went to have my truck serviced and staff was friendly,
Went to have my truck serviced and staff was friendly, the facility was clean and the service was done quickly and correctly. Would recommend to my family and friends.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Kyle Kelle provided me with exceptional customer service.
Kyle Kelle provided me with exceptional customer service. he made the car buying experience stress-free and made it seem so simple. He took care of everything. I’m so grateful and I love my purchase.
Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
very professional and helpful.
very professional and helpful. I cant say enough good things about this dealerships service 10/10 would recommend!
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
What a positive experience from beginning to end.
What a positive experience from beginning to end. I never did business with ActonToyota previously. I was in the market for a used vehicle and Ron a very talented and knowledgeable sales person reached out to me and helped me identify exactly what vehicle I needed and gave me great suggestions and options. He allowed me to test drive the vehicle that I identified and worked with me to get the best price possible. It was a used car and he introduced me to Jeff The manager overseeing that department. What an experience and a very genuine honest individual who educated me on the different vehicles mentioning not only the positive, but also some of the downsides of owning a particular vehicle, including high maintenance costs or gas mileage concerns. In addition to Ron and Jeff. I was very pleased with the finance department in terms of how easy the process was and allowing me to pick and choose which Service plans if any work best for me. Jo and Josiah were awesome to work with. I have owned and purchased a number of vehicles from other dealerships. Normally the finance people are very formal and can Sometimes make the consumer, uncomfortable and anxious. It was the complete opposite with these guys. One last shout out to Jimmy and his talented team over at Acton Toyota! Jimmy came up to me and introduced himself and was as down-to-earth and friendly as one could imagine. I really felt like I knew the guy for years. The whole process was awesome and the people there made it so comfortable and easy to purchase a vehicle that I would highly recommend anyone looking for a vehicle to at least give them a try. I’m sure that you will walk out with the same positive experience as I did.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had my oil changed - booking appointment was easy - the
I had my oil changed - booking appointment was easy - the staff was pleasant and service was timely - waiting room was clean - all my questions were answered
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great used car dealer
I spent a lot of time searching for a specific color, make, and model. From start to finish Chris Trombley and everyone else I dealt with at automax to push this deal through were great. There were never any surprises. Communication was excellent and the transaction was as easy as it could be for buying a car out of state.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I have never had a bad experience at Tasca.
I have never had a bad experience at Tasca. Everyone is helpful, friendly and knowledgeable.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Bought my truck from Paul Macchi.
Bought my truck from Paul Macchi.Great salesman,friendly.Great to work with.I will definitely recommend Paul to my friends.VERY SATISFIED
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $63,446 | 1 Good deal |
| 2025 GMC Sierra 1500 | $51,924 | 6 Great deals |
| 2024 GMC Sierra 1500 | $49,282 | 10 Great deals |
| 2023 GMC Sierra 1500 | $43,694 | 16 Great deals |
| 2022 GMC Sierra 1500 | $42,485 | 18 Good deals |
| 2021 GMC Sierra 1500 | $35,454 | 7 Good deals |
| 2019 GMC Sierra 1500 | $31,527 | 7 Good deals |
| 2018 GMC Sierra 1500 | $24,560 | 7 Good deals |
About the 2020 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 17
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
How much does the 2020 GMC Sierra 1500 cost?
The 2020 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 1500 is $33,876, with pricing starting at $13,995.
What is the MPG of the 2020 GMC Sierra 1500?
The 2020 GMC Sierra 1500 offers up to 15 MPG in city driving and 21 MPG on the highway for a combined rating of 17 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2020 GMC Sierra 1500?
The 2020 GMC Sierra 1500 compares to and/or competes against the following vehicles:
Is the 2020 GMC Sierra 1500 reliable?
The 2020 GMC Sierra 1500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 1500 owners.
Is the 2020 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2020 GMC Sierra 1500.
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
91% of drivers recommend this car
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
AT4 (3 styles)
| Style | ||
|---|---|---|
| 4WD Double Cab 147" AT4 | 4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
| Inventory price | ||
| Starting at $51,300 | Starting at $54,000 | Starting at $53,700 |
| Combined MPG | ||
| 18 | 18 | 18 |
| Engine | ||
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Base (8 styles)
| Style | |||||||
|---|---|---|---|---|---|---|---|
| 4WD Crew Cab 157" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Double Cab 147" | 2WD Crew Cab 157" | 4WD Crew Cab 147" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
| Inventory price | |||||||
| Starting at $39,500 | Starting at $33,500 | Starting at $35,900 | Starting at $36,800 | Starting at $36,200 | Starting at $39,200 | Starting at $34,200 | Starting at $29,600 |
| Combined MPG | |||||||
| 20 | 20 | 20 | 20 | 20 | 20 | 17 | 17 |
| Engine | |||||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) |
Denali (4 styles)
| Style | |||
|---|---|---|---|
| 2WD Crew Cab 157" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali | 2WD Crew Cab 147" Denali |
| Inventory price | |||
| Starting at $55,400 | Starting at $58,600 | Starting at $58,900 | Starting at $55,100 |
| Combined MPG | |||
| 19 | 18 | 18 | 19 |
| Engine | |||
| 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) |
Elevation (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 2WD Crew Cab 157" Elevation | 2WD Crew Cab 147" Elevation | 4WD Double Cab 147" Elevation | 4WD Crew Cab 147" Elevation |
| Inventory price | |||||
| Starting at $46,500 | Starting at $40,500 | Starting at $43,200 | Starting at $42,900 | Starting at $43,800 | Starting at $46,200 |
| Combined MPG | |||||
| 20 | 21 | 21 | 21 | 20 | 20 |
| Engine | |||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 2WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 4WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 4WD Crew Cab 147" SLE |
| Inventory price | |||||
| Starting at $40,700 | Starting at $38,000 | Starting at $41,300 | Starting at $40,400 | Starting at $44,000 | Starting at $43,700 |
| Combined MPG | |||||
| 21 | 21 | 20 | 20 | 20 | 20 |
| Engine | |||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLT (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT | 4WD Double Cab 147" SLT | 2WD Double Cab 147" SLT | 2WD Crew Cab 157" SLT |
| Inventory price | |||||
| Starting at $50,400 | Starting at $46,900 | Starting at $50,700 | Starting at $48,000 | Starting at $44,500 | Starting at $47,200 |
| Combined MPG | |||||
| 18 | 19 | 18 | 18 | 19 | 19 |
| Engine | |||||
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
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This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
